Compress Your PDF
Files
Reduce PDF file size in your browser for free. Optimize without quality loss, your files never leave your device.
Drag & drop your PDF file or click to select
Only PDF files are supported
Balanced: optimum balance between quality and size.
Size Comparison
How It Works
Upload your PDF file, set the compression level, and reduce file size without quality loss.
Upload PDF
Drag and drop or select the PDF file you want to compress.
Choose quality
Adjust the compression level to balance quality and file size.
Compress
Click compress to optimize your PDF and reduce its size.
Download
Download your compressed PDF and compare the size difference.
Why Covrixa?
About PDF Compressor
Covrixa PDF Compressor is a free web tool that reduces the size of your PDF files without quality loss. It is used for email attachments, web uploads, and storage savings. The tool cleans up unused objects and optimizes the PDF structure to reduce file size.
The tool works entirely in your browser using the pdf-lib library. Your PDF file is never sent to any server — all compression happens on your device. You can expect an average of 10-30% size reduction. The compression ratio varies depending on the PDF's structure and content.
Privacy Note: Your PDF file is never sent to Covrixa servers. All compression is performed locally in your browser. Google Analytics may be used to measure site performance. Your documents remain completely private.
Does compression affect quality?
No. This tool optimizes the PDF structure without degrading visual quality. Image quality, text clarity, and page layout are all preserved.
How much compression to expect?
Average 10-30% size reduction. PDFs with many edits can achieve higher ratios. Lower the quality setting for more aggressive compression.
Which files benefit most?
Scanned documents and PDFs with many edits benefit most from compression. Already optimized PDFs may see lower compression ratios.
Example Use Case
Suppose you have a 15 MB PDF report that needs to be sent via email, but your email provider has a 10 MB attachment limit. You can solve this problem with the Covrixa PDF Compressor.
Step 1: Drag and drop your PDF file into the tool. File information is displayed automatically.
Step 2: Adjust the compression quality. The default value of 70 offers balanced compression. Lower the value for more aggressive compression.
Step 3: Click "Compress & Download". When processing is complete, you can compare the original and compressed sizes.
In this example, your 15 MB report is reduced to approximately 12 MB with 20% compression. If still above the limit, try a lower quality setting for more aggressive compression. This way you can meet email size limits and share files quickly.
Frequently Asked Questions
What is PDF compression and how does it work?
Does compression cause quality loss?
Are my files safe?
What size PDFs can be compressed?
How much compression can I expect?
How long does compression take?
Can I compress encrypted PDFs?
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